What this work involves
Discuss occupancy, existing provisions, sound and duct space. Have the system designed and commissioned for the home.
- System choice
- Ducts, terminals and noise
- Maintenance and commissioning
Use the following design considerations when coordinating this service with a wider project. Agree which parts apply to your request.
Coordinate comfort systems with the chosen insulation and ventilation provisions.
Decide this before construction
Assess the existing detail before selecting products. Then coordinate insulation, ventilation and visible finishes so one improvement does not create an unexamined consequence elsewhere.
Allow for later maintenance
Keep a record of the differences between existing and renewed details. Include product information and locations of components that must remain accessible.
Cost factors for this service
Costs depend on system, duct routes, access and finishing. Ask for the scope and selected specification to be described separately.
Bring this to the discussion
Photographs of the existing situation, available drawings and your requirements for ventilation & heat recovery. Identify the elements that should remain.
Questions about the work
What should I discuss before arranging ventilation & heat recovery?
Replacing a ventilation unit may not be enough. Supply air, transfer paths and duct condition also determine overall performance.
The design situations here illustrate choices; they are not completed projects or a diagnosis of your property.

